Improvement in heating-furnaces



TTED STATES JESSE REYNOLDS, 0E PHILADELPHIA, PENNSYLVANIA.

IMPROVEMENT IN HEATING-FURNACES.

Specification forming part of Letters Patent No. 179,062, dated June 20,1876 application liled April 23, 1874.

To all whom t mcg/'concern:-

Be it known that I, JESSE REYNOLDS, of the city of Philadelphia.Pennsylvania, have invented an Improvement in Heating-Fur! naccs, ofwhich the following is a specification:

The object of my invention is to so construct the walls of thecombustion-chamber ot' a heating-furnace that while a goedv heating ef-.fect is produced, the said walls may be effectually protected from theinjurious effects of the direct action of the products of combustion.

In the accompanying drawing,- in which Figure l is a vertical section,and Fig. 2 a

A A, vof irc-clay, supported partly by the in-A clined rear and partlyby the ledge h of angleiron, and held in position by the angular platesm m, riveted to the sides of the combustionchamber. It is preferable tomake these slabs in two parts, meeting each other on the central linex,as shown, each part being cut away near its upper edge to conform to theshape of the outlet D but any desired number of slabs may be used. Butas the slabs A A tend somewhat to hinder the radiation of the heat,

I have found that by making a series of openings or passages, a, in theslabs, a much better heating effect is produced, while the rear plate ofthe combustion-,chamber is in no way injuriously affected by being thusexposed at different points to the products of combustion. I do notdesire to claim, broadly, applying' slabs of lire-clay t'o the Walls ofa furnace 5 but I claim as my inventionl. The combinationof the slab orslabs A A of lire-clay with the inclined plate b of a furnace, and withthe ledge h and retainingplates m, as set forth.

Y, 2. The combination of the metallic casing of the combustion chamberof a furnace with v a slab or slabs, A, ot' lire-clay,having a series

